你好,方程里面没有c参数,我参照你的方程做出了如下的图象横纵坐标分别为 x y z坐标为 c(x,y) clc,clear close all x = 1; y = 1; n = -2:2; x =1 ;y = 1; [x y ] = meshgrid(0:.01:0.32,-0.4:.01:0.6) k = 0;l = 0; [row col] = size(x); for ii = 1:row for jj = 1:col c(ii,jj) = sum(su(-2:2,x(ii,jj),y(ii,jj))); end end figure, surf(c,x,y); xlabel('x') ylabel('y'); zlabel('c')